import time


def bubble_sort(nums):
    swapped = True
    while swapped:
        swapped = False
        for i in range(len(nums) -1):
            if nums[i] > nums[i + 1]:
                nums[i], nums[i + 1] = nums[i + 1], nums[i]
                swapped = True


def read2list(filename):
    file = open(filename, 'r')
    data = file.readlines()
    return data
m1 = read2list("m1_sorted.txt")
m2 = read2list("m2_sorted.txt")
m3 = read2list("m3_sorted.txt")
bubble_sort(m1)
bubble_sort(m2)
bubble_sort(m3)
start = time.time()
bubble_sort(m1)
stop = time.time()
print((stop - start) * 1000)
bubble_sort(m2)
bubble_sort(m3)